1. He downloaded(下载) a piece of song sung by this professional(专业的) musician. After listening to it, he wanted to buy a sheet(一张) of CD of higher quality (质量).
2. The archaeologist (考古学家) is in the process(过程) of studying the structure of the entrances(入口) and roofs (屋顶) of some historic(历史上著名的) heritage, such as pyramid, the Great Wall and so on. So he often travels overseas(在海外).
3. The digital(数码的) images(形象) of the Mogao Caves (洞穴) were so popular that they were spread throughout (遍及) the whole world over the Internet.
4. He made a serious mistake in an important parade(游行) during the Dragon(龙) Boat Festival. To his surprise, his classmates forgave(原谅) him.
5. In my opinion(意见), we should further know more about excellent traditions(传统). You can identify (识别)different customs by comparison(比较) and contrast (对照).
